Canon imagePRESS C800 Series, Troubleshooting Manual

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Chapter 1
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3) Select Settings/Registration > Adjustment/Maintenance > Maintenance > Clean Roller, and press Start.
[Reference]
- It takes approximately 20 seconds to clean the roller.
- A roller cleaning cannot be performed during printing.
1.1.1.6.5 Luster streak/uneven gloss in vertical scanning direction
0031-5485
[ Manual-related ]
Description
When paper with a longer width is used after copying or printing 100 or more sheets of paper with a shorter width (for example, when you use A3/11" x 17" paper
after A4R/LTRR paper), luster streak may appear on both edges in the feeding direction.
In addition, patches of uneven gloss may appear in the high density areas of the printed heavy paper or coated paper.
Field Remedy
Select Settings/Registration > Adjustment/Maintenance > Maintenance > Refresh Fixing Belt, and press Start.
[Reference]
- It takes approximately 120 seconds to clean the roller.
- The Fixing Belt cannot be refreshed during printing.
The Fixing Belt is automatically refreshed after printing a set number of sheets. If the frequency and time for implementing a refresh needs to be changed, select
Settings/Registration > Adjustment/Maintenance > Maintenance > Fixing Belt Auto Refresh Level, and increase or decrease the refresh operation using "-" and "+"
and then press OK.
1.1.1.6.6 Vertical line on image
0031-6396
[ Verified by Canon Inc. ]
Symptom
In high humidity environment, dark vertical line under 5mm in width [a] may appear on halftone image. [b] is the feeding direction.
Cause
Wax component contained in toner may attach to drum when pressed by drum cleaning blade.
When moisture gets on the area where wax is attached in high humidity environment, less amount of electricity is charged in such area. The above-mentioned symp-
tom occurs due to the difference in the amount of electricity charged between the areas where wax is attached and where it is not attached.
Service Work
1) Select Settings/Registration > Adjustment/Maintenance > Maintenance > Clean Inside Main Unit, and press "Start" button. The cleaning takes about 1 min.